Global Patent Index - EP 1023939 A1

EP 1023939 A1 2000-08-02 - Process for producing 1,2-Dichloroethane by oxychlorination

Title (en)

Process for producing 1,2-Dichloroethane by oxychlorination

Title (de)

Verfahren für die Herstellung von 1,2-Dichlorethan aus der Oxichlorierung

Title (fr)

Procédé pour produire du 1,2-Dichloroethane par oxychloration

Publication

EP 1023939 A1 (DE)

Application

EP 00100199 A

Priority

DE 19903335 A

Abstract (en)

1,2-dichloroethane is produced by substitution of ethylene with HCl and oxygen , or an oxygen containing gas, on a copper containing particulate catalyst, in a fluidized bed reactor. The oxygen and hydrochloric acid are fed directly into the reactor via porous gas distributors (11); the ethylene enters the bed through a gas porous floor (12) after being combined with the recycle stream, and fed into the reactor shell below the floor. An Independent claim is also included for fluidized bed reactor which has feed lines (1) and (3) for the gases, at least one product discharge line (5), and where feed (1) enters the reactor through a porous element. The reactor floor is preferably made of porous glass or ceramic material sections, with a pore size of approximate 0.5 - 50 micron. The exit gas filters (4) may be metal or ceramic candles, tubes, or cartridges, retaining particles down to approximately 1 micron.

Abstract (de)

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von 1,2-Dichlorethan durch Umsetzung von Ethen mit Chlorwasserstoff und Sauerstoff oder einem sauerstoffhaltigen Gas an einem kupferhaltigen Katalysator im Wirbelbett, dadurch gekennzeichnet, daß die Einleitung mindestens einer der Eduktströme Chlorwasserstoff und Sauerstoff, direkt in das Wirbelbett, über Zuleitungen aus porösem gasdurchlässigen Formkörper erfolgt und die Einleitung des Ethylens und des Kreisgasstroms über einen Boden, der aus porösem gasdurchlässigem Material gefertigt, oder mit Formkörper aus porösem gasdurchlässigem Material versehen ist, erfolgt. <IMAGE>

IPC 1-7 (main, further and additional classification)

B01J 8/24; B01J 8/00; C07C 17/156; C07C 19/045

IPC 8 full level (invention and additional information)

C07C 19/045 (2006.01); B01J 8/00 (2006.01); B01J 8/24 (2006.01); C07C 17/156 (2006.01)

CPC (invention and additional information)

B01J 8/1827 (2013.01); B01J 8/006 (2013.01); B01J 8/1872 (2013.01); C07C 17/156 (2013.01); Y02P 20/582 (2015.11)

Combination set (CPC)

C07C 17/156 + C07C 19/045

Citation (search report)

Designated contracting state (EPC)

BE DE FR IT NL

EPO simple patent family

EP 1023939 A1 20000802; EP 1023939 B1 20020417; CA 2297428 A1 20000728; CA 2297428 C 20031230; CN 1136172 C 20040128; CN 1265389 A 20000906; DE 19903335 A1 20000817; NO 20000432 A 20000731; NO 20000432 D0 20000127; PL 338098 A1 20000731; RU 2176993 C2 20011220; TR 200000253 A2 20000921; ZA 200000312 B 20000927

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